A heat exchanger is a device for an efficient transfer of heat between two media fluids. The medium can be in two separate ways or in direct contact. The heat exchangers are mainly used in generators, compressors, cooling of processes, like heating, cooling, air conditioning, power plants, chemical plants, marine, automotive, petrochemical plants, oil refineries and natural gas processing, nuclear power plants, ports, Center of shipbuilding, Indian Railway etc. There are many types of heat air cooled, as a heat exchanger, heat exchanger tube Shell heat exchanger finned meter, heat exchangers type plate, air cooled condenser, air cooler of fin Tube bundle heat exchangers of heat, heat exchanger plates welded, aluminum, stainless steel heat exchangerheat exchanger copper heat, heat exchanger, heat exchanger, Compact, double tube heat exchanger, heat exchangers for marine, tubular heat exchanger in water heat exchanger, plate exchanger, air-cooled heat exchanger tube of helmet heat exchangers heat exchangers and tubes consist of a series of tubes. A set of these tubes contain liquid that must be heated or cooled. The second fluid runs over tubes that are being heated or cooled so that it can provide heat or absorb the heat needed..